Harness agent skills for Claude Code, Cursor and RevampKey

3 ready-made playbooks that teach an AI agent how to do real Harness work: which tools to call, what to check first, and when to stop and ask you.

Download RevampKey, free I have it: connect Harness

Connect Harness once and all 3 skills install themselves and stay up to date. Mac, Windows and Linux.

All 3 Harness skills

Each skill is one job. You ask in plain words and the agent loads the skill that matches, then follows its steps.

Start hereAsks before writing11 Harness tools

Use the Harness connector safely

Confirms the account, organisation and project before reading, picks the right one of the 11 Harness tools, and asks for your explicit approval before anything changes or runs.

Use it when

You have just connected Harness and want to know how the assistant will work with it.
You are about to create, update, delete or run something in a Harness project.
You have access to several Harness accounts or projects and want to avoid mixing them up.

Tools it uses

harness_list
harness_search
harness_get
harness_status
harness_describe
harness_schema
harness_create
harness_update
harness_diagnose
harness_delete
harness_execute

Example

Check the status of the last run in our payments project, but make sure we are looking at production and not staging.

Pinned to account Acme Prod, org platform, project payments. The last execution was 14 minutes ago and failed at the deploy stage. I did not rerun it. Want me to pull the failing step's details?

Use in RevampKeyRead the full skill →

Read-only5 Harness tools

Triage a failed Harness pipeline execution

Finds the first real step that failed in a Harness pipeline run, separates the root cause from the steps that were skipped as a result, and recommends a fix. It reports only and asks before rerunning, rolling back or changing anything.

Use it when

A deployment pipeline failed and the team wants to know which step caused it
A pipeline run has been stuck or waiting for a long time
A rerun passed earlier but fails now and nobody knows why

Tools it uses

harness_list
harness_search
harness_status
harness_describe
harness_get

Example

Why did execution 4821 of the payments deploy fail in production?

The root cause is the Deploy stage, step 'Rolling Update', which failed with 'image tag v2.14.3 not found in registry' (medium-high confidence). The image was built from a branch that was never pushed. Two later steps, Verify and Notify, were skipped as a consequence, not failures. Suggested next step: confirm the tag exists, then rerun. I have not triggered a rerun; say the word if you want me to proceed.

Use in RevampKeyRead the full skill →

Read-only6 Harness tools

Audit Harness pipeline runs with AI

Reviews recent pipeline executions across a Harness project and produces a read-only health summary of repeated failures, slow stages and stale pipelines. It never reruns or changes anything without asking first.

Use it when

A weekly CI/CD health check for the platform team
Finding which pipelines fail most often this month
Preparing a delivery report on pipeline reliability

Tools it uses

harness_list
harness_search
harness_get
harness_describe
harness_status
harness_diagnose

Example

Audit the pipeline runs in the payments project for the last 7 days and tell me which pipelines need attention.

In the payments project over the last 7 days, 212 runs across 14 pipelines: 171 succeeded, 29 failed, 12 were aborted. The checkout-deploy pipeline failed 9 of 31 runs, all at the integration-tests step, which points to a flaky test rather than a deploy problem. Two pipelines have not run in over 40 days and look like clean-up candidates for their owners. Nothing was rerun or changed.

Use in RevampKeyRead the full skill →

Get all 3 without copying a file

RevampKey adds the skills when you connect Harness, updates them for you and removes them when you disconnect.

Download RevampKey

How Harness skills work

Connect Harness
The Harness MCP server gives the agent its tools.
Ask in plain words
“Why did execution 4821 of the payments deploy fail in production?” Each SKILL.md says when it applies, so only the one that fits is loaded.
Approve any change
The agent calls the tools in order, checks its work, and shows you any change before it makes it.

How to install Harness skills

In RevampKey the skills install themselves when you connect Harness. In other tools each skill is one folder with a SKILL.md file, and you also need the Harness MCP server connected there.

About 1 minute · nothing to copy

Download RevampKey for Mac, Windows or Linux and sign in.
Open Connectors and connect Harness. All 3 skills come with it and stay up to date; they go away when you remove the connector.
Ask in plain language, for example “Why did execution 4821 of the payments deploy fail in production?”
Download RevampKeyConnect Harness · 1 click
Get RevampKey to connect Harness
RevampKey is a free desktop app for Mac, Windows and Linux. Install it, sign in, and Harness is one click away with its skills already attached.
Download RevampKey
Not now? Use the skills in your current tool
for s in essentials pipeline-execution-triage pipeline-run-audit; do curl -fsSL --create-dirs -o .claude/skills/harness-$s/SKILL.md https://revampkey.com/marketplace/harness/skills/$s/SKILL.md done
Other tools

Into this project’s .claude/skills folder

Connect the Harness MCP server in Claude Code.

Run this in your project folder to add all 3 skills:

for s in essentials pipeline-execution-triage pipeline-run-audit; do
  curl -fsSL --create-dirs -o .claude/skills/harness-$s/SKILL.md https://revampkey.com/marketplace/harness/skills/$s/SKILL.md
done

Ask in plain language, for example “Why did execution 4821 of the payments deploy fail in production?”

Into the shared .agents/skills folder

Connect the Harness MCP server in Cursor.

Run this in your project folder to add all 3 skills:

for s in essentials pipeline-execution-triage pipeline-run-audit; do
  curl -fsSL --create-dirs -o .agents/skills/harness-$s/SKILL.md https://revampkey.com/marketplace/harness/skills/$s/SKILL.md
done

Ask in plain language, for example “Why did execution 4821 of the payments deploy fail in production?”

Into the shared .agents/skills folder

Connect the Harness MCP server in Codex.

Run this in your project folder to add all 3 skills:

for s in essentials pipeline-execution-triage pipeline-run-audit; do
  curl -fsSL --create-dirs -o .agents/skills/harness-$s/SKILL.md https://revampkey.com/marketplace/harness/skills/$s/SKILL.md
done

Ask in plain language, for example “Why did execution 4821 of the payments deploy fail in production?”

Into the shared .agents/skills folder

Connect the Harness MCP server in VS Code.

Run this in your project folder to add all 3 skills:

for s in essentials pipeline-execution-triage pipeline-run-audit; do
  curl -fsSL --create-dirs -o .agents/skills/harness-$s/SKILL.md https://revampkey.com/marketplace/harness/skills/$s/SKILL.md
done

Ask in plain language, for example “Why did execution 4821 of the payments deploy fail in production?”

RevampKey or copy the files?

In RevampKey

One click when you connect Harness
Updated for you when a skill improves
Removed when you disconnect
The MCP server is set up for you
800+ other connectors, same way

Download free

Copy into your project

One command per project
Run it again to get updates
You connect the Harness MCP server yourself
Works in Claude Code, Cursor, Codex and VS Code

See the command

Harness skills FAQ

What is a Harness agent skill?

A SKILL.md file: a short playbook an AI agent loads when your request matches it. Each Harness skill describes one job, which Harness tools to use in which order, what to check first and when to stop and ask you.

Do the Harness skills change anything on their own?

2 of the 3 only read. The others tell the agent to show you the change and wait for a yes before it creates, edits or deletes anything in Harness.

Which tools can use these skills?

Any agent that reads the open Agent Skills format: Claude Code, Cursor, Codex, VS Code with Copilot and RevampKey. In RevampKey they are attached when you connect Harness; elsewhere you copy the folders into your project or skills directory.

Do I need the Harness MCP server too?

Yes. The skills tell the agent how to do the work; the Harness MCP server gives it the tools to do it. The Harness MCP setup guide covers every client.

Harness MCP server setup · This page as Markdown

Put Harness’s best workflows in your agent

Download RevampKey, connect Harness and ask your first question in about a minute.

Download RevampKey Connect Harness · 1 click

All 3 Harness skills

Use the Harness connector safely

Use it when

Tools it uses

Triage a failed Harness pipeline execution

Use it when

Tools it uses

Audit Harness pipeline runs with AI

Use it when

Tools it uses

Get all 3 without copying a file

How Harness skills work

How to install Harness skills

RevampKey or copy the files?

In RevampKey

Copy into your project

Harness skills FAQ

Put Harness’s best workflows in your agent

Skills for related tools